1984-1996 Corvette Outer Lower Side Window Reproduction Seals suffer punishing sunlight and UV exposure. They dry out, crack and peel, allowing water and dirt to damage your Corvette's interior and door window regulator components. Replacing these seals may require a weekend project, but the improvement in the look of your car will be worth it, and besides that, you can do about half dozen other small improvements and service while your inside the door panel.